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Is it possible to get the status of a printer (specifically, on- or offline) using php or javascript?

I am trying to connect to a HeidiSQL db using php PDO on a linux mint 19.3 machine. I cannot. This is the code I am using: $dsn = "mysql:host=$host;dbname=$db;charset=$charset"; try { $conn = new PDO("mysql:host=$severname;dbname=$db", $user, $pass)...